Suspend to Ram under Debian
On Fri, 29 Jan 2010 21:06:42 +0000, T o n g wrote:
Re: [Solved] Suspend/Hibernate under Debian
> Hooray!!!
> It resumes fine!!!
FYI,
To suspend to Ram under Debian, the best doc is the included one, ie,
/usr/share/doc/uswsusp/README.s2ram-whitelist.gz
The online version is at
Suspend to RAM
http://en.opensuse.org/S2ram
Please read it through carefully before continuing.
My machine is not in the whitelist, ie, it is a "unknown machine", so I
have to find workarounds.
What doesn't work:
s2ram -f
s2ram -f -a 2
What works:
s2ram -f -a 1
tested under both the text console mode and X.
The numeric argument for option -a is from 1 to 3, specifying s3_bios,
s3_mode or both (1=s3_bios, 2=s3_mode, 3=both).
So my workaround would be:
* passing acpi_sleep=s3_bios to the kernel
* Since kernel 2.6.16, the acpi_sleep parameter can be set during runtime
(no reboot needed) in /proc/sys/kernel/acpi_video_flags, with "1" for
s3_bios, "2" for s3_mode and "3" for both.
[TIP]
Better to test under the text console. When it doesn't work for
me, I get a blank screen upon resuming. I can hear the hard disk
spinning, and I can see the the wireless LED come on when
resuming. CapsLock gets proper responds as well. This means
everything works fine except screen display. I just press up key
and correct the prevous command blindly, until that I found
's2ram -f -a 1' works, then tried it under X.
HTH
--
Tong (remove underscore(s) to reply)
http://xpt.sourceforge.net/techdocs/
http://xpt.sourceforge.net/tools/
Reply to: